Hello! I have the R1162L, and both my daughter (2 years old) and son (four months old) have it. My husband is British and he carries the classic CF gene. My daughter was given the sweat test and nothing was abnormal. She has no CF symptoms in the slightest. My son, although carrying the same combo, wasn't even given the sweat test because, as WildCherry wrote, it has been classified as non-disease causing very recently. It might cause a mild onset of symptoms, like cough or sinusitis, but not anything huge.
My genetic counselor told me, however, that R1162L male carriers may have a natural infertility due to the absence of a vas deferens. In these cases, sperm could be collected from the male carrier and a female partner could be fertilized, so it's not that huge a problem.